    New chain ID            Original chain ID

9d9x-pdb-bundle1.pdb:
           A                        Ha
           B                        Hb
           C                        Hc
           D                        Hd
           E                        He
           F                        Hf
           G                        Pa
           H                        Pb
           I                        Pc
           J                        Pd
           K                        Pe
